Home / 75,831.28-113,746.90-40,722.64

Finding the Fourth Proportional to 75,831.28, 113,746.90 and 40,722.64

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Solution

The fourth proportional to 75,831.28, 113,746.90 and 40,722.64 is: 61,083.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,831.28 : 113,746.90 = 40,722.64 : x
  2. Step 2: Convert to fraction form
    75,831.28/113,746.90 = 40,722.64/x
  3. Step 3: Cross multiply
    75,831.28x = 113,746.90 × 40,722.64
  4. Step 4: Simplify right side
    75,831.28x = 4,632,074,059.82
  5. Step 5: Solve for x
    x = 4,632,074,059.82/75,831.28
  6. Step 6: Final answer
    x = 61,083.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.